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Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 82.1 N, Jill pulls with 64.3 N in the northeast direction, and Jane pulls to the southeast with 121 N. (Since the donkey is involved with such uncoordinated people, who can blame it for being stubborn?) Find the magnitude of the net force the people exert on the donkey.
What is the direction of the net force? Express this as the angle from the east direction between 0° and 90°, with a positive sign for north of east and a negative sign for south of east.
The hydraulic cylinder is subjected to 3 forces. An 8kN force is exerted on cylinder at B that is parallel to the cylinder and points from B towards C. The link AC exerts the force at C that is parallel to the line from A to C. The link CD exerts ..
During an adiabatic process, the temperature of 3.62mol of a monatomic ideal gas drops from 460C to 215C a) Find the work done by the gas. b)Find the heat the gas exchanges with its surroundings. c)Find the change in its internal energy.
If the electric flux through a closed surface is determined to be 2.10N?m2/C , how much charge is enclosed by the surface
A car moves from a point located 26.0 m from the origin and at an angle of 35.0 from the x-axis to the point located 57.0 m from the origin and at an angle of 60.0 from the x-axis in 2.52 s.
An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 445 Hz when the train is approaching him and 418 Hz when the train is receding from him. Using these frequencies, h..
Consider a rotational axis at point where the tire contacts the ground, directed vertical to the plane of the paper. Find out the magnitude of the man's force for both designs.
A particle moves with constant acceleration a . The expression vi+at represents the particle's velocity at what instant in time? Here are the choices.
A merchant in Katmandu sells you a solid gold 1 kg statue for a very reasonable price. When you get home, you wonder whether or not you got a bargain, and so you lower the statue into and container of water and measure volume. What volume of displ..
A sailboat is heading directly north at a speed of 21 knots (1 knot = 0.514 m/s). The wind is blowing towards the east with a speed of 10.6 knots. (Both velocities are given relative to the Earth.)
While on an elevator, Jaden's apparent weight is 550N, When he is on the ground, the scale reads 600N, What is Jaden's acceleration while on the elevator
If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire
In order for Sasha (in A-5) to feel weightless at the top of the ride, a) at what linear speed must the Ferris wheel tum? b) At this speed, how much would she appear to weigh at the bottom of the Ferris wheel.
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